BARA: Simra airport is preparing to operate night flights. Airport office chief Bikram Raj Gautam said the airport is mulling night flights in view of increasing flow of passengers. Homework for it is underway, he said. The airport has started working on operating night flights after posting continuous revenue growth. In the first six months of the current fiscal year, Rs 5,324,477 million revenue was collected, said airport accounts officer Subarna Lal Shrestha. . Compared to the last fiscal year, revenue collection went up by 22 per cent, he said.